How to get rights of admin after I disabled all admin accounts in my computer

The following tutorial will allow you to enable the default Administrator. There are other ways to change the permission of an existing user and/or change the password of an existing Administrator. Those methods are not covered by this tutorial and are considered out of scope for the purpose of this question.

This tutorial assumes you know how to create an installation disk, boot to that disk, and enter WinRE which is contained on that disk. This tutorial won't cover how to do that. This tutorial does not require access to an Administrator account, the entire purpose of this tutorial is to enable the built-in Administrator account which by default is disabled.

Enable or Disable Built-in Administrator in Command Prompt at Boot

  1. Download the Windows 10 .ISO

  2. Within WinRE at a command prompt, type regedit, and press Enter.

  3. In the left pane of Registry Editor, click/tap on the HKEY_LOCAL_MACHINE key.

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  1. Click/tap on File (menu bar), and on Load Hive.

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  1. Open the drive that you have Windows 10 installed on, and browse to the location below.

X:\Windows\System32\config

  1. Select the SAM file, and click/tap on Open.

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  1. In the Load Hive dialog, type REM_SAM, and click/tap on OK.below)

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  1. In the left pane of Registry Editor, navigate to and open the key below.

HKEY_LOCAL_MACHINE\REM_SAM\SAM\Domains\Accounts\Users\000001F4

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  1. In the right pane of the 000001F4 key, double click/tap on the F binary value to modify it.

  2. In line 0038, change 11 to 10, click/tap on OK

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  1. Close Registry Editor and the command prompt.

  2. Click/tap on Continue to startup back in Windows 10.

Source

Related Question: Where can I get a clean ISO of the Windows 10 Anniversary update?


I would use another method in order to reenable a user account of a member of the Administrator group:

  1. Download an .iso file of Ubuntu and burn it to a disc.

  2. Boot from the burned disc.

  3. Click on "Try Ubuntu".

  4. Open the file manager of Ubuntu and navigate to the hard disk your Windows is installed on. Open the folder X:\Windows\System32.

  5. Copy the file utilman.exe and rename the copy to utilman.exe.bak. Copy the file cmd.exe and rename the copy to utilman.exe.

  6. Shut down Ubuntu and remove the disc of Ubuntu afterwards.

  7. Start your computer in order to boot into Windows. On the logon screen press Windows-Key and U. A command prompt running with system rights will appear. Type into the command net user name /ACTIVE:YES while replacing name with the name of an account in the Administrator group.

  8. After that reboot from the burned disc and undo your previous changes by deleting utilman.exe and renaming utilman.exe.bak to utilman.exe

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Windows

User Accounts

Windows 10

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